stevie

[quote name='bassmansky' post='604747' date='Sep 21 2009, 05:19 PM']RCL drivers are one of the best you can buy imo.i would think twice before changing that.[/quote] I wonder if you're maybe thinking of RCF.

Bought a speaker cab from Jay recently. He went that extra mile and I'd be happy to deal with him again.

[quote name='Delberthot' post='601440' date='Sep 17 2009, 04:47 PM']I've thought about something that I'll need to check as well - I've only ever fitted drivers to front loaded cabs before - never where they mount from behind the baffle - do I need to do anything special other than offer them onto the bolts and tighten them up?[/quote] You'll be very lucky if the bolts are in the same place as the bolt holes on your new speaker but you can always check the manufacturer's specs before laying down your money. I think a bit of jiggery pokery may well be called for.

[quote name='Delberthot' post='599447' date='Sep 15 2009, 05:37 PM']I don't want to spend any more than about £50-70 a speaker ideally - are there any better options?[/quote] Congratulations on your purchase. If you would like to restore the cab, someone is selling an old pair of Goodmans 15s on eBay. A bit pricey, but that's vintage for you. If it were my cab, I'd be tempted. [url="http://cgi.ebay.co.uk/VINTAGE-PA-BASS-GOODMANS-50P-15-SPEAKERS-CABS_W0QQitemZ270456044136QQcmdZViewItemQQptZUK_ConElec_SpeakersPASystems_RL?hash=item3ef86fba68&_trksid=p3286.c0.m14"]http://cgi.ebay.co.uk/VINTAGE-PA-BASS-GOOD...id=p3286.c0.m14[/url] I've no personal experience of it (plenty of experience with the Eminence though, which is cheap and cheerful), but for a relatively inexpensive, modern, high performance driver, the Fane Sovereign 15-500 looks hard to beat. If you're going to put a modern driver into that cab, you might like to consider fitting another back panel so that you can rear port it. A bit of BAF wadding wouldn't go amiss whatever you decide to do.

If it's an unusual part you could always ask these people: [url="http://www.majelectronic.co.uk/"]http://www.majelectronic.co.uk/[/url]. They specialize in Laney and HH bits.

[quote name='wateroftyne' post='568504' date='Aug 13 2009, 11:05 PM']Try posting something with the sarcasm button switched off. You never know - you might like it, and people might be prepared to engage you a bit more. Just sayin'.[/quote] That’s OK, WoT. I thought I was expressing scepticism about a commercial company’s excessive claims for their product. Sorry if it came across the wrong way. IMO there are lots of good reasons why the cab richrips wants to build is not a good idea – not least of which is that it seems to comparable in size to a 2 x 12. It’s just a shame that the thread has degenerated into a discussion of personalities and posting styles. Anyway, I’m hoping to get away for a long weekend now. So you might be spared my sarcasm for a while at least.

[quote name='dood' post='568474' date='Aug 13 2009, 10:28 PM']Ok, move along... nothing to see here, back to the topic.[/quote] Well, back on topic, the answer to the original question is that if Bill says you can only use one particular driver in his design, you are a bit stuck. I find it hard to believe that only one driver will work in what is looks like quite a simple cabinet, but there you are. [OK, Dood?]

[quote name='dood' post='568429' date='Aug 13 2009, 09:32 PM']Hmmm yes, I have Pm'd Stevie about this with ref to treating Alex Claber the same as well. - Stevie - this ain't cool.. 'If you haven't got anything good to say......', I think you know how the saying ends.[/quote] Dood, I haven't received your pm, but I think I'm entitled to raise questions about the statement Bill made yesterday claiming that his product outperforms all other products of its type. Especially as he provides no basis for all of his assertions. It looks like a midrange horn to me and I said so. Now, I'm quite happy to be proved wrong. Alex and I haven't always seen eye to eye, but that hasn't stopped us having a friendly relationship and I respect what he does.

[quote name='TPJ' post='568269' date='Aug 13 2009, 06:33 PM']Stevie, what are you talking about? Bill is an accomplished engineer who knows what he's talking about. Every time he offers advice all you can do is come up with a lame insult and usually no constructive advice or facts to support what you say. If you go to Bill's sight he and lots of other people with years of experience can help you. They don't generally hang out here becasue of people like Stevie who talk bollocks.[/quote] I think one of the fundamental principles of Basschat is that members have the freedom to express opinions about bass-related products and the marketing techniques of the various vendors without being subject to inane and baseless namecalling. If you wish to refute my statements, please go ahead, but ‘you are talking bollocks’ is not an argument and doesn’t advance your case. Perhaps you would also like to express an opinion on the statement that Bill made yesterday: “….. a lot better than the high priced 'boutique' 1x12s out there. OTOH side by side with my Jack 112 loaded with a only a 2512 they're very much also-rans. You can only do so much with a bass reflex box.” And while you’re thinking about that, here is a product developed by another ‘accomplished engineer’. This one was actually qualified and received a knighthood for his services to industry: [url="http://www.sinclairc5.com/"]http://www.sinclairc5.com/[/url]

[quote name='boabskiboab' post='567076' date='Aug 12 2009, 06:16 PM']Can one of you guys put into words the true differences between. Seymour Duncan Vintage Jazz Pups Seymour Duncan Hot Jazz Pups Seymour Duncan Quarter Pounder Jazz Pups Do seymours antiquities just look old or are there tonal differnces?[/quote] The Vintage sound nice. Very woody, very complex, very burpy Jaco in the back position. I haven't tried the hot Jazz pickups, although I didn't like the Duncan hot P-Bass pickups. In the rear position of my Yamaha, the Quarter Pounder sounds just like a Precision. I'm not kidding you, it sounds nearly the same as the Vintage Duncan P-Bass at the front, just a bit more trebly. I'd remain sceptical about the Antiquities. I smell a marketing man at work.

[quote name='alexclaber' post='568181' date='Aug 13 2009, 05:17 PM']For high-end hi-fi I think it's worth worrying more about group delay and in fact any causes of stored energy which is just another reason why Linkwitz's active open-baffle designs are worth investigating if you have a big house and lots of money - but with the demanding SPLs, huge dynamic range and big bottom that is expected from bass guitar cabs there's no doubt in my mind that ported cabs are the way to go.[/quote] Interesting you should mention the Linkwitz dipole because I half-built one once just to see what it sounded like. I've never heard such clear, detailed bass before or since. They don't need to be expensive either, because you can use a passive crossover, but you do need to give them plenty of room, which is why I didn't pursue it. [quote name='alexclaber' post='568181' date='Aug 13 2009, 05:17 PM']I believe another contributor to 'slow' bass response is the performance of speakers when hit with huge low frequency transients, as when slapping through an amp with deep extended lows. Speakers with too little clean excursion and too extreme a change in behaviour beyond Xmax seem to end up sounding more woolly than punchy when trying to handle such an input.[/quote] Yes, and a properly rated magnet to control the cone movement. I think the term 'fast' when applied to bass doesn't so much mean starting fast but stopping fast.

Cheers, Alex. Those discussions don't actually come down on one side of the fence of the other. Last I heard, there had been no definitive study of the subject, although Bill is implying that he has seen a recent study that we're not privy to. He's just not prepared to share that information. On a more practical level, and returning to the original subject, lower group delay is the single and only advantage that a sealed cabinet has in pro sound bass applications. Whether or not it is audible, reflex cabinets have so many benefits that sealed is hardly ever a sensible option for bass. My own view is that the impression of 'fast' and 'slow' bass is due to a combination of factors including high frequency extension and delayed resonances, although other artefacts such as frequency response anomalies can also contribute.

[quote name='Bill Fitzmaurice' post='568009' date='Aug 13 2009, 02:37 PM']As with all my designs the J112 requires not only specific T/S specs but also specific driver response. You should be posting your question at [url="http://billfitzmaurice.net/phpBB3/"]http://billfitzmaurice.net/phpBB3/[/url], with links to the driver data sheets showing the manufacturer's axial response charts.[/quote] Bill doesn't like discussing his designs anywhere but on his own, tightly controlled website where nobody can ask embarrassing questions like, why exactly do you want to build a mid horn for your bass guitar?

Congrats, Ray - a job well done. I'd be happy with a pair of those drivers and you've got eight.

[quote name='Prosebass' post='567196' date='Aug 12 2009, 07:34 PM']Not a gig but when practicing at home in my teens I used to sit on my bed with the headstock of my bass against a big wooden headboard that I used as a sound-board. Sounded pretty good but was rather uncomfortable.[/quote] This definitely gets my vote!

[quote name='Bill Fitzmaurice' post='567224' date='Aug 12 2009, 07:48 PM']+1. Group delay is inaudible in the non-directional frequencies, for the same reason that they are non-directional.[/quote] Lots of strongly held opinions here but not much evidence (make that no evidence). This is not the scientific way, guys. It isn't so just cos you say so.

[quote name='ped' post='567181' date='Aug 12 2009, 07:19 PM']No amp at all (in ear monitors!)[/quote] Any advance on this, folks ?

[quote name='chris_b' post='567053' date='Aug 12 2009, 05:57 PM']In 1997 Robin Cook tried the idea of an ethically responsible foreign policy and scrapped the idea in a matter of weeks.[/quote] Not much point in having an ethical foreign policy while you are about to invade a number of foreign countries. But God bless Robin Cook, I say. He may have been a philanderer, but his resignation speech was magnificent, and surprisingly honest for a politician.

[quote name='The Funk' post='567155' date='Aug 12 2009, 07:04 PM']Does a DI box count?[/quote] I'm expecting a Monty Python moment any second now.....

[quote name='Bill Fitzmaurice' post='564487' date='Aug 9 2009, 09:32 PM']Where basic bass reflex boxes are concerned the fEarful are as good as any commercial offerings, and better than most. I'd be hard pressed to name a commercial cab that's as well engineered, or even close to it for that matter. I've also recently prototyped a couple of 12/6 cabs for a manufacturer, similar to the fEarful 12/6, using the 3012HO driver. They're nice cabs, a lot better than the high priced 'boutique' 1x12s out there. OTOH side by side with my Jack 112 loaded with a only a 2512 they're very much also-rans. You can only do so much with a bass reflex box.[/quote] Such a wonderful example of damning with faint praise.

[quote name='john_the_bass' post='561823' date='Aug 6 2009, 11:11 AM']I actually have a set of these Stevie, although I've only used them for rehearsals, they seemed alright. I might try them at a gig, but I suppose I was always a bit mistrustful of Behringer gear for pro applications.[/quote] I was going to say, if they're not your cup of tea, they will always be useful as a backup, but it looks like you had that idea first. I agree that Behringer is very much a mixed bag but some of their stuff is certainly comparable with the specialist brand names.

[quote name='warwickhunt' post='561708' date='Aug 6 2009, 09:14 AM']I had one of those (or was it the same one MB?) and it didn't have a horn.[/quote] Indeed, but it did sound very nice in the upper frequency range.

You can get a set of 3 Behringer XM8500s for £40, which will at least get you going quickly. I've heard from a number of sources that these are comparable with Shure SM58s, but I've no personal experience of them. This guy certainly thinks so: [url="http://www.humanbeatbox.com/microphones/p2_articleid/181"]http://www.humanbeatbox.com/microphones/p2_articleid/181[/url]. The price is definitely right, and I'm sure plenty of users on here will have an opinion on them.

What a couple of complete wallies!